Bay Area Beginning iPhone Programming Workshop: July 30-31. $799 with early bird price & “mo” discount code. Hurry: early bird price expires Weds!
Carlos Icaza and Walter Luh are the co-founders of Ansca Mobile and creators of Corona, a new & much talked-about Lua based kit for building native iPhone applications.
This interview includes details about creating Corona; a comparison of the programming model, memory management, performance and optimization using Corona/Lua vs Cocoa Touch/Objective-C; and Adobe’s upcoming iPhone Flash products.
You can listen using the Flash player below, download the MP3, or subscribe to the iPhone Developer Podcast using the instructions at the bottom of this post.
For easy scanning of the interview, here is what was covered and when:
- 1:00 Leaving Adobe and the path to creating Corona
- 4:00 Why Lua? Good for mobile: Code base small and good performance. Accessible for people comfortable doing web-scripting. Capable of handling serious engineering e.g., Photoshop Lightroom, World of Warcraft
- 7:00 Where does Lua stop and Corona begin?
- 8:45 Display layer atop OpenGL
- 9:15 Event/user-interaction mode (as compared e.g., to Cocoa Touch)
- 11:00 Memory management, garbage collection, memory consumption
- 12:45 Memory optimization for in-memory images
- 13:15 Graphics “painters” model
- 14:00 On-screen grouping
- 15:00 Getting started with Corona
- 15:30 What comes with the SDK
- 16:30 Interpreted on the phone? Compiled to native code? Some intermediate format?
- 19:00 Performance
- 21:30 Intended for “Flash-like” apps, or more broadly?
- 22:30 From here to 1.0: mostly about making it easy to get the code onto the device, making Internet calls
26:00 Flash on the iPhone scheduled for October…[update: while Adobe is releasing Flash for a number of phones in October the iPhone doesn't appear to be one of them.]
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